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Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach

Experimental modal testing was used to discover a crack in a beam structure in this study. Minor changes in beam geometry can theoretically alter vibration response. In fact, comprehensive information about the presence of small cracks is unlikely to be detected only from the experimental vibration...

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Main Authors: Fawazi, Noor, Man, M. H.C., Parnon, Mohamad Afiq Amiruddin
Format: Conference or Workshop Item
Language:English
Published: 2023
Online Access:http://eprints.utem.edu.my/id/eprint/28054/1/Damage%20detection%20in%20a%20free-free%20beam%20structure%20using%20reconstructed%20mode%20shape%20data%20Experimental%20approach.pdf
http://eprints.utem.edu.my/id/eprint/28054/
https://pubs.aip.org/aip/acp/article-abstract/2798/1/020024/2904140/Damage-detection-in-a-free-free-beam-structure?redirectedFrom=fulltext
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spelling my.utem.eprints.280542024-10-17T12:46:40Z http://eprints.utem.edu.my/id/eprint/28054/ Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach Fawazi, Noor Man, M. H.C. Parnon, Mohamad Afiq Amiruddin Experimental modal testing was used to discover a crack in a beam structure in this study. Minor changes in beam geometry can theoretically alter vibration response. In fact, comprehensive information about the presence of small cracks is unlikely to be detected only from the experimental vibration response. As a result, looking at the vibration mode shape data alone isn't enough to identify the crack. The mode shape data, which contains information on the crack effects present in the beam structure, was collected through experimental modal testing. The difference between two sets of detail coefficients computed from the reconstructed mode shape data using the Stationary Wavelet Transform then reveals the position of the cracked beam (SWT). The reconstructed mode shape data is first interpolated with spline interpolation to capture the existence of the crack position with better resolution. The difference between two sets of detail coefficients from the SWT is visualised using splined interpolation, which can be particularly useful in overcoming the issue of a limited number of measuring points during actual modal testing. 2023 Conference or Workshop Item PeerReviewed text en http://eprints.utem.edu.my/id/eprint/28054/1/Damage%20detection%20in%20a%20free-free%20beam%20structure%20using%20reconstructed%20mode%20shape%20data%20Experimental%20approach.pdf Fawazi, Noor and Man, M. H.C. and Parnon, Mohamad Afiq Amiruddin (2023) Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach. In: 2021 International Conference of SNIKOM, ICoSNIKOM 2021, 18 September 2021, Medan. https://pubs.aip.org/aip/acp/article-abstract/2798/1/020024/2904140/Damage-detection-in-a-free-free-beam-structure?redirectedFrom=fulltext
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description Experimental modal testing was used to discover a crack in a beam structure in this study. Minor changes in beam geometry can theoretically alter vibration response. In fact, comprehensive information about the presence of small cracks is unlikely to be detected only from the experimental vibration response. As a result, looking at the vibration mode shape data alone isn't enough to identify the crack. The mode shape data, which contains information on the crack effects present in the beam structure, was collected through experimental modal testing. The difference between two sets of detail coefficients computed from the reconstructed mode shape data using the Stationary Wavelet Transform then reveals the position of the cracked beam (SWT). The reconstructed mode shape data is first interpolated with spline interpolation to capture the existence of the crack position with better resolution. The difference between two sets of detail coefficients from the SWT is visualised using splined interpolation, which can be particularly useful in overcoming the issue of a limited number of measuring points during actual modal testing.
format Conference or Workshop Item
author Fawazi, Noor
Man, M. H.C.
Parnon, Mohamad Afiq Amiruddin
spellingShingle Fawazi, Noor
Man, M. H.C.
Parnon, Mohamad Afiq Amiruddin
Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
author_facet Fawazi, Noor
Man, M. H.C.
Parnon, Mohamad Afiq Amiruddin
author_sort Fawazi, Noor
title Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
title_short Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
title_full Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
title_fullStr Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
title_full_unstemmed Damage detection in a free-free beam structure using reconstructed mode shape data: Experimental approach
title_sort damage detection in a free-free beam structure using reconstructed mode shape data: experimental approach
publishDate 2023
url http://eprints.utem.edu.my/id/eprint/28054/1/Damage%20detection%20in%20a%20free-free%20beam%20structure%20using%20reconstructed%20mode%20shape%20data%20Experimental%20approach.pdf
http://eprints.utem.edu.my/id/eprint/28054/
https://pubs.aip.org/aip/acp/article-abstract/2798/1/020024/2904140/Damage-detection-in-a-free-free-beam-structure?redirectedFrom=fulltext
_version_ 1814061454632943616
score 13.211869

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